On 13/09/2016 14:59, Crowe, Tom wrote:
Your mkfs.lustre will look something like this:
mkfs.lustre ‹ost --mgsnode=NID_OF_MGS --fsname=FS_NAME --index=DECIMAL_NUM
‹backfstype=zfs --network=NET_TYPE testpool/ost-name-here
The last argument, is the zfs vdev device you want mkfs.lustre to create
for you.
Right getting a bit further now,
[root@oric x86_64]# mkfs.lustre --fsname=test --mgs --mdt --index=0
--backfstype=zfs testpool/mgt_test
Permanent disk data:
Target: test:MDT0000
Index: 0
Lustre FS: test
Mount type: zfs
Flags: 0x65
(MDT MGS first_time update )
Persistent mount opts:
Parameters:
mkfs_cmd = zfs create -o canmount=off -o xattr=sa testpool/mgt_test
Writing testpool/mgt_test properties
lustre:version=1
lustre:flags=101
lustre:index=0
lustre:fsname=test
lustre:svname=test:MDT0000
So it looks like the MDT/MGS is being created on the zfs pool, however
step 3 says to try and mount this, but I get :
[root@oric x86_64]# mount -t lustre testpool/mgt_test /mgt_mds
mount.lustre: mount testpool/mgt_test at /mgt_mds failed: No such device
Are the lustre modules loaded?
Check /etc/modprobe.conf and /proc/filesystems
Yes the modules are loaded, and lustre appears in /proc/filesystems.
Cheers.
Phill.
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